<template>
  <div class="app-container">
    <upload-excel-component
      :on-success="handleSuccess"
      :before-upload="beforeUpload"
    />

    <!-- 表格：展示excel的内容 -->
    <el-table
      :data="tableData"
      border
      highlight-current-row
      style="width: 100%; margin-top: 20px"
    >
      <el-table-column
        v-for="item of tableHeader"
        :key="item"
        :prop="item"
        :label="item"
      />
    </el-table>
  </div>
</template>

<script>
import UploadExcelComponent from '@/components/UploadExcel/index.vue'
import { formatExcelDate } from '@/utils/index'
import { putEmployeesAPI } from '@/api/employee'
export default {
  name: 'UploadExcel',
  components: { UploadExcelComponent },
  data() {
    return {
      tableData: [],
      tableHeader: []
    }
  },
  methods: {
    async doPut() {
      try {
        const res = await putEmployeesAPI(this.tableData)
        console.log('', res)
        // 保存数据
      } catch (err) {
        console.log('', err)
      }
    },
    beforeUpload(file) {
      const isLt1M = file.size / 1024 / 1024 < 1
      if (isLt1M) {
        return true
      }
      this.$message({
        message: 'Please do not upload files larger than 1m in size.',
        type: 'warning'
      })
      return false
    },
    handleSuccess({ results, header }) {
      console.log('读出来的excel的内容是', results, header)
      this.tableData = this.transExcel(results, header)
      this.tableHeader = header
      // console.log(this.tableData)
      this.doPut()
    },
    // 格式化日期
    transExcel(results, header) {
      const mapInfo = {
        '入职日期': 'timeOfEntry',
        '手机号': 'mobile',
        '姓名': 'username',
        '转正日期': 'correctionTime',
        '工号': 'workNumber',
        '部门': 'departmentName',
        '聘用形式': 'formOfEmployment'
      }
      const cnKeys = Array.from(header)
      // console.log(cnKeys)
      const obj = {}
      return results.map(ele => {
        cnKeys.forEach(item => {
          const enkey = mapInfo[item]
          // console.log(enkey)
          if (enkey === 'timeOfEntry' || enkey === 'correctionTime') {
            obj[enkey] = new Date(formatExcelDate(ele[item]))
          } else {
            obj[enkey] = ele[item]
          }
          // console.log(ele[item])
          // console.log(obj)
        })
        return obj
      })
    }
  }
}
</script>
